feat: Update c2pa.py

Makefile

@@ -3,15 +3,10 @@
 # Start from clean env: Delete `.venv`, then `python3 -m venv .venv`
 # Pre-requisite: Python virtual environment is active (source .venv/bin/activate)
 
-release:
-	cargo build --release
-
 build-python:
-	rm -rf c2pa/c2pa
 	python3 -m pip uninstall -y maturin
-	python3 -m pip uninstall -y uniffi
 	python3 -m pip install -r requirements.txt
-	maturin develop
+	pip install -e .
 
 test:
 	python3 ./tests/test_unit_tests.py